GENWORM(1)						      General Commands Manual							GENWORM(1)

NAME

       genworm - generate a RADIANCE description of a functional worm

SYNOPSIS

       genworm mat name 'x(t)' 'y(t)' 'z(t)' 'r(t)' nseg [ -e expr ][ -f file ]

DESCRIPTION

       Genworm	produces  a  RADIANCE  scene description of a worm defined by the parametric equations x(t), y(t), z(t), and r(t) (the radius).  T
       will vary from 0 to 1 in steps of 1/nseg.  The surface will be composed of nseg cones or cylinders and nseg+1 spheres.  The expressions are
       of the same type used in RADIANCE function files.  Auxiliary expressions and/or files may be specified in any number of -e and -f options.

EXAMPLE

       To generate a banana:

	 genworm yellow banana '0' '5*sin(t)' '5*cos(t)' '.4-(.5-t)*(.5-t)' 20

AUTHOR

       Greg Ward

BUGS

       Since  the worm is constructed of intersecting surfaces, only opaque materials should be used with this object.	Also, a worm cannot double
       back inside itself without making a mess.

SEE ALSO

       genrbox(1), genrev(1), gensurf(1), icalc(1), rpict(1), rvu(1), xform(1)

RADIANCE
							     11/15/93								GENWORM(1)